Amy M. Trowbridge
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View article: From beginning to end: the synecology of tree‐killing bark beetles, fungi, and trees
From beginning to end: the synecology of tree‐killing bark beetles, fungi, and trees Open
Over a century of research has revealed an amazing complexity of behaviours and physiological adaptations that allow tiny bark beetles to overcome large trees, sometimes resulting in outbreaks that kill millions of trees. Turning a tree in…
View article: Spectral biology across scales in changing environments
Spectral biology across scales in changing environments Open
Understanding ecosystem processes on our rapidly changing planet requires integration across spatial, temporal, and biological scales. We propose that spectral biology, using tools that enable near‐ to far‐range sensing by capturing the in…
View article: Spectral biology across scales in changing environments
Spectral biology across scales in changing environments Open
Understanding ecosystem processes on our rapidly changing planet requires integration across spatial, temporal and biological scales. We propose that spectral biology, using tools that enable near- to far-range sensing by capturing the int…
View article: Water, not carbon, drives drought‐constraints on stem terpene defense against simulated bark beetle attack in <i>Pinus edulis</i>
Water, not carbon, drives drought‐constraints on stem terpene defense against simulated bark beetle attack in <i>Pinus edulis</i> Open
Summary Drought predisposes forest trees to bark beetle‐induced mortality, but the physiological mechanisms remain unclear. While drought‐induced water and carbon limitations have been implicated in defensive failure and tree susceptibilit…
View article: Applications of Defense Elicitors to Roots of Containerized Eastern White Pine (<i>Pinus strobus</i>) Stimulate Increased Defensive Enzyme Activities of Fine Roots
Applications of Defense Elicitors to Roots of Containerized Eastern White Pine (<i>Pinus strobus</i>) Stimulate Increased Defensive Enzyme Activities of Fine Roots Open
The expansion of the use of induced resistance (IR) has been, and remains, an attractive prospect for the management of woody plants, but little research has occurred assessing the ability of elicitors to induce the root defenses of woody …
View article: Local carbon reserves are insufficient for phloem terpene induction during drought in <i>Pinus edulis</i> in response to bark beetle‐associated fungi
Local carbon reserves are insufficient for phloem terpene induction during drought in <i>Pinus edulis</i> in response to bark beetle‐associated fungi Open
Summary Stomatal closure during drought inhibits carbon uptake and may reduce a tree's defensive capacity. Limited carbon availability during drought may increase a tree's mortality risk, particularly if drought constrains trees' capacity …
View article: Pinus ponderosa physiology data from the 2023 girdling manipulation field experiment at Game Ridge, Missoula County, Montana, USA
Pinus ponderosa physiology data from the 2023 girdling manipulation field experiment at Game Ridge, Missoula County, Montana, USA Open
This dataset contains physiology data on Pinus ponderosa saplings, including: leaf water potential (MPa, megapascals), leaf osmotic potential (MPa, megapascals), leaf pressure potential (MPa, megapascals), leaf relative water content (% sa…
View article: Pinus ponderosa physiology data from the 2022 shade manipulation field experiment at Game Ridge, Missoula County, Montana, USA
Pinus ponderosa physiology data from the 2022 shade manipulation field experiment at Game Ridge, Missoula County, Montana, USA Open
This dataset contains physiology data on Pinus ponderosa saplings, including: leaf water potential (MPa, megapascals), leaf osmotic potential (MPa, megapascals), leaf pressure potential (MPa, megapascals), leaf relative water content (% sa…
View article: Environmental monitoring data from the 2022-2023 field experiment at Game Ridge, Missoula County, Montana, USA
Environmental monitoring data from the 2022-2023 field experiment at Game Ridge, Missoula County, Montana, USA Open
This dataset contains sensor data from programmed loggers as well as handheld moisture probes, including weather data, air and soil temperature, and soil volumetric water content. Data files and data dictionary(ies) are uploaded as .csv fi…
View article: Plot and Tree Characteristics from the 2022-2023 field experiment at Game Ridge, Missoula County, Montana, USA
Plot and Tree Characteristics from the 2022-2023 field experiment at Game Ridge, Missoula County, Montana, USA Open
This dataset contains plot and study tree characteristics including identifiers, latitude and longitude data, tree heights, tree diameters, and distance between trees within a study plot. Data files and data dictionary(ies) are uploaded as…
View article: Detecting the invasive <i>Lespedeza cuneata</i> in grasslands using commercial small satellite imagery
Detecting the invasive <i>Lespedeza cuneata</i> in grasslands using commercial small satellite imagery Open
Lespedeza cuneata (L. cuneata) is an invasive legume threatening grassland ecosystems of several states in the U.S. Mapping the occurrence of invasive species is the necessary first step to control their spread. Imaging spectroscopy or hyp…
View article: Observations of biogenic volatile organic compounds over a mixed temperate forest during the summer to autumn transition
Observations of biogenic volatile organic compounds over a mixed temperate forest during the summer to autumn transition Open
The exchange of trace gases between the biosphere and the atmosphere is an important process that controls both chemical and physical properties of the atmosphere with implications for air quality and climate change. The terrestrial biosph…
View article: Comment on egusphere-2022-1015
Comment on egusphere-2022-1015 Open
Abstract. The exchange of trace gases between the biosphere and the atmosphere is an important process that controls both chemical and physical properties of the atmosphere with implications for air quality and climate change. The terrestr…
View article: Genotype, mycorrhizae, and herbivory interact to shape strawberry plant functional traits
Genotype, mycorrhizae, and herbivory interact to shape strawberry plant functional traits Open
Arbuscular mycorrhizal fungi (AMF) and herbivores are ubiquitous biotic agents affecting plant fitness. While individual effects of pairwise interactions have been well-studied, less is known about how species interactions above and belowg…
View article: Observations of biogenic volatile organic compounds over a mixed temperate forest during the summer to autumn transition
Observations of biogenic volatile organic compounds over a mixed temperate forest during the summer to autumn transition Open
The exchange of trace gases between the biosphere and the atmosphere is an important process that controls both chemical and physical properties of the atmosphere with implications for air quality and climate change. The terrestrial biosph…
View article: Supplementary material to "Observations of biogenic volatile organic compounds over a mixed temperate forest during the summer to autumn transition"
Supplementary material to "Observations of biogenic volatile organic compounds over a mixed temperate forest during the summer to autumn transition" Open
S1 GC collections and calibrations S1.1 Routine field collectionsRoutinely, 2-3 sets of chromatograms were collected each day where each set consisted of a zero collection, two ambient sample collections, and a zero collection.The times of…
View article: Cropping systems alter plant volatile emissions in the field through soil legacy effects
Cropping systems alter plant volatile emissions in the field through soil legacy effects Open
Crops emit a variety of volatile organic compounds (VOCs) that serve as attractants or repellents for pests and their natural enemies. Crop rotations, off-farm chemical inputs, and mechanical and cultural tactics – collectively called crop…
View article: Using image spectroscopy to assess the genetic and environmental controls governing tree chemical defense responses to an irruptive herbivore
Using image spectroscopy to assess the genetic and environmental controls governing tree chemical defense responses to an irruptive herbivore Open
<p>Genetics, in concert with environmental factors, affect plant chemical defenses, and thereby plant susceptibility to pests, pathogens, and ultimately mortality. Plant resource allocation strategies in response to stress play impor…
View article: Mapping invasive alien species in grassland ecosystems using airborne imaging spectroscopy and remotely observable vegetation functional traits
Mapping invasive alien species in grassland ecosystems using airborne imaging spectroscopy and remotely observable vegetation functional traits Open
Lespedeza cuneata (sericea lespedeza; hereafter "sericea") is an invasive species brought to the U.S. from East Asia in the 1890s to be used as forage. However, it has now become a growing ecological and economic threat in grasslands of se…
View article: Coordinated resource allocation to plant growth–defense tradeoffs
Coordinated resource allocation to plant growth–defense tradeoffs Open
Summary Plant resource allocation patterns often reveal tradeoffs that favor growth (G) over defense (D), or vice versa. Ecologists most often explain G–D tradeoffs through principles of economic optimality, in which negative trait correla…
View article: Growth, Chemistry, and Genetic Profiles of Whitebark Pine Forests Affected by Climate-Driven Mountain Pine Beetle Outbreaks
Growth, Chemistry, and Genetic Profiles of Whitebark Pine Forests Affected by Climate-Driven Mountain Pine Beetle Outbreaks Open
Climate change-driven Dendroctonus ponderosae outbreaks in semi-naïve Pinus albicaulis may result in rapid natural selection for trees with genotypes and phenotypes associated with survival. In this study, we investigated whether survivors…
View article: Vapor pressure deficit helps explain biogenic volatile organic compound fluxes from the forest floor and canopy of a temperate deciduous forest
Vapor pressure deficit helps explain biogenic volatile organic compound fluxes from the forest floor and canopy of a temperate deciduous forest Open
A preprint of an article on biogenic volatile organic compound flux in a mixed deciduous forest.
View article: Quantifying whole tree non-structural carbon dynamics under long-term experimental drought using radiocarbon
Quantifying whole tree non-structural carbon dynamics under long-term experimental drought using radiocarbon Open
<div> <div> <div> <p>Under increasingly frequent, persistent, and severe drought events, predicting future forest carbon dynamics necessitates quantitative understanding of the physiological processes leading to tre…
View article: BII-Implementation: The causes and consequences of plant biodiversity across scales in a rapidly changing world
BII-Implementation: The causes and consequences of plant biodiversity across scales in a rapidly changing world Open
The proposed Biology Integration Institute will bring together two major research institutions in the Upper Midwest—the University of Minnesota (UMN) and University of Wisconsin-Madison (UW)—to investigate the causes and consequences of pl…
View article: Soil Biogenic Volatile Organic Compound Flux in a Mixed Hardwood Forest: Net Uptake at Warmer Temperatures and the Importance of Mycorrhizal Associations
Soil Biogenic Volatile Organic Compound Flux in a Mixed Hardwood Forest: Net Uptake at Warmer Temperatures and the Importance of Mycorrhizal Associations Open
Biogenic volatile organic compounds (bVOCs) play important roles in ecological interactions and Earth system processes, yet the biological and physical processes that drive soil bVOC exchanges remain poorly understood. In temperate forests…